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Cloud Computing Part #1

Cloud Computing Part #1. Zigmunds Buli ņš, Mg. sc. ing. http://www.digitaltrends.com/wp-content/uploads/2011/09/Cloud-Computing.jpg. Computing history (1). Abacus 2700–2300 BC. http://upload.wikimedia.org/wikipedia/commons/e/ea/Boulier1.JPG

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Cloud Computing Part #1

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  1. Cloud Computing Part #1 Zigmunds Buliņš, Mg. sc. ing

  2. http://www.digitaltrends.com/wp-content/uploads/2011/09/Cloud-Computing.jpghttp://www.digitaltrends.com/wp-content/uploads/2011/09/Cloud-Computing.jpg

  3. Computing history (1) • Abacus • 2700–2300 BC http://upload.wikimedia.org/wikipedia/commons/e/ea/Boulier1.JPG http://retrocalculators.com/abacus_files/Wooden_Abacus_Russian_Wood_Schoty.jpg

  4. Computing history (2) • Babbage computer • 1834 - Charles Babbage http://members.peak.org/~jeremy/superlative/pix/babbageMachine.jpg

  5. Computing history (3) • Z1 computer • Konrad Zuse, 1936 • 22-bit floating point • Z2, Z3, … Z5 • Plankalkul  (ALGOL) http://www.yorku.ca/lbianchi/sts3700b/z1-vb2.jpg

  6. Computing history (4) • Bell 1 • 1940 • 9000 relays, 90 m2, 10 t • Mark 1 • 1944 • Equations • ENIAC • 1946 • 18000 lamps, 90 × 15 m2, 30t, 150 kW • 100 kHz, + for 0.2 ms, * for 2.8 ms http://mathsci.ucd.ie/~plynch/eniac/ENIAC.jpg

  7. Computing history (5) • Philco-2000 • 1955 • 56000 transistors, 1200 diodes, (450 lamps) • + for 1,7 microseconds, * for 40,3 • CDC 6600 • 1960 • 169000 transistors • 100 MHz http://upload.wikimedia.org/wikipedia/commons/thumb/c/c4/CDC_6600.jc.jpg/800px-CDC_6600.jc.jpg

  8. Computing history (6) • System-360 • 1964, First integral • DOS, OS/360 • Intel 8008 • 1972 • 8 bit • Intel 8088 • PC XT -> PC AT (80286) http://www.wired.com/images/article/full/2008/04/ibm_360_500px.jpg

  9. Performance progress (1) • 2010: 2.57 petaflops • 2005: 280.6 teraflops • 2000: 4.94 teraflops • 1995: 170 gigaflops • 15,100 times faster • 1,650 times faster • 19 times faster • The baseline http://royal.pingdom.com/2010/12/02/incredible-growth-supercomputing-performance-1995-2010/

  10. Performance progress (2) • In 2010, we measure the performance of the fastest supercomputers in petaflops (quadrillions of operations per second). In 1995, we used gigaflops (billions of operations per second). We are now using the scale a million times larger than we did 15 years ago.

  11. Tasks and computers • Need for performance • Amount of the data • Resolution / quality / complexity • Growing demand • More online users • More applications running

  12. Scaling thing (1) • Personal computer • Simple, personal computing tasks http://a57.foxnews.com/global.fncstatic.com/static/managed/img/Health/2009/July/660/371/COMPUTER-GIRL_640.jpg?ve=1

  13. Scaling thing (2) • Network • Common tasks, resources http://www.lucartech.com/images/Services_network.jpg

  14. Scaling thing (3) • Cluster • Processing power, large IO http://www.biomedcentral.com/content/figures/1471-2105-11-217-1-l.jpg http://upload.wikimedia.org/wikipedia/commons/thumb/c/c5/MEGWARE.CLIC.jpg/300px-MEGWARE.CLIC.jpg

  15. Scaling thing (4) • Cloud • The topic we will speak about… http://www.bluesci.org/wordpress/wp-content/uploads/2011/09/Sevensheaven_illustration-Cloud_Computing.jpg

  16. Cloud computing (1) http://en.wikipedia.org/wiki/File:Cloud_computing.svg

  17. Cloud computing (2) • Grid computing • SOA • Client-server • distributed application that distinguishes between service providers (servers) and service requesters (clients) • Peer-to-peer • distributed architecture without the need for central coordination

  18. 5 essential characteristics • On-demand self-service • Broad network access • Resource pooling • Rapid elasticity • Measured service

  19. Service models • Infrastructure (IaaS) • Platform (PaaS) • Software (SaaS) • Network (NaaS) • Database (DBaaS) http://upload.wikimedia.org/wikipedia/commons/3/3c/Cloud_computing_layers.png

  20. Deployment models • Public cloud • Community cloud • Hybrid cloud • Private cloud http://upload.wikimedia.org/wikipedia/commons/8/87/Cloud_computing_types.svg

  21. Comparison for SaaS

  22. Virtualization (1) • VM technology allows multiple virtual machines to run on a single physical machine

  23. Virtualization (2) Advantages of virtual machines: • Run operating systems where the physical hardware is unavailable; • Easier to create new machines, backup machines, etc.; • Software testing using “clean” installs of operating systems and software; • Emulate more machines than are physically available; • Timeshare lightly loaded systems on one host, • Debug problems (suspend and resume the problem machine); • Easy migration of virtual machines (shutdown needed or not); • Run legacy systems!

  24. Advantages of Cloud Computing (1) • Lower computer costs • Improved performance • Reduced software costs • Instant software updates • Improved document format compatibility

  25. Advantages of Cloud Computing (2) • Unlimited storage capacity • Increased data reliability • Universal document access • Latest version availability • Easier group collaboration • Device independence

  26. Disadvantages of Cloud Computing (1) • Requires a constant Internet connection • Does not work well with low-speed connections • Features might be limited

  27. Disadvantages of Cloud Computing (2) • Can be slow • Stored data might not be secure • Stored data can be lost • Compatibility for clouds/DB/etc.

  28. Relax http://www.treloarphysio.com/blog/wp-content/uploads/2012/02/relax-relaxing-8925208-1024-768.jpg

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